In this work we present the ultra-relativistic N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}-extended AdS Chern-Simons supergravity theories in three spacetime dimensions invariant under N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}-extended AdS Carroll superalgebras. We first consider the (2, 0) and (1, 1) cases; subsequently, we generalize our analysis to N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document} = (N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}, 0), with N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document} even, and to N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document} = (p, q), with p, q > 0. The N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}-extended AdS Carroll superalgebras are obtained through the Carrollian (i.e., ultra-relativistic) contraction applied to an so(2) extension of osp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{osp} $$\end{document}(2|2) ⊗ sp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{sp} $$\end{document}(2), to osp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{osp} $$\end{document}(2|1) ⊗ osp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{osp} $$\end{document}(2, 1), to an soN\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{so}\left(\mathcal{N}\right) $$\end{document} extension of osp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{osp} $$\end{document}(2|N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}) ⊗ sp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{sp} $$\end{document}(2), and to the direct sum of an so\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{so} $$\end{document}(p) ⊕ so\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{so} $$\end{document}(q) algebra and osp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{osp} $$\end{document}(2|p) ⊗ osp\documentclass[12pt]{minimal}
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\begin{document}$$ \mathfrak{osp} $$\end{document}(2, q), respectively. We also analyze the flat limit (ℓ → ∞, being ℓ the length parameter) of the aforementioned N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}-extended Chern-Simons AdS Carroll supergravities, in which we recover the ultra-relativistic N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}-extended (flat) Chern-Simons supergravity theories invariant under N\documentclass[12pt]{minimal}
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\begin{document}$$ \mathcal{N} $$\end{document}-extended super-Carroll algebras. The flat limit is applied at the level of the superalgebras, Chern-Simons actions, supersymmetry transformation laws, and field equations.
